Arya Themes

Allows users to choose and preview all WordPress themes installed without 
activation or deactivation for demonstration purposes.
<h4>Usage</h4>
<pre><code>https://example.com/?theme=slug-theme
https://example.com/?theme=slug-theme&child=slug-child-theme
</code></pre>

Arya Switch Theme

Works like a charm, perfect for theme developers.

Absolutely Brilliant !

Allows users to choose and preview all WordPress themes installed without

Tom Lynch

Switch Theme allows WordPress Network Administrators to switch all the themes on their WordPress installation to a different theme in only a few clicks.
This is particularly useful if you have large network of blogs which you wish to switch to a new version of your theme.
If you find this plugin useful please <a href="http://supportus.cancerresearchuk.org/donate/" rel="nofollow ugc">donate to Cancer Research UK</a>, and let me know what think you via <a href="http://tomlynch.co.uk" rel="nofollow ugc">my website</a>.
Switch Theme is only for use with WordPress installations with multisite enabled, it will not work on standalone installations or WordPress MU.

Switch Theme

Switch Theme allows WordPress Network Administrators to automatically switch all the themes on their WordPress installation to a different theme.

Arya Switch Theme vs Switch Theme